<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <!-- import CSS -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
    <!-- import Axios -->
    <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
    <style>
        header a{
            text-decoration: none;
            color: #6c6c6c;
        }
        .el-table .el-table__cell{
            padding: 0;/*去掉表格中每一行自带的内边距*/
        }
        .el-table .cell{
            white-space: nowrap;/*让内容在一行中显示*/
            /* text-overflow: ellipsis;*//*文本内容超出范围时用省略号表示*/
        }
        .p_img:hover{
            position: relative;
            top: 5px;
            /*设置元素阴影:x偏移值 y偏移值 浓度 范围 颜色*/
            box-shadow: 0 0 10px 5px #333;
        }
    </style>
</head>
<body>
<div id="app">
    <el-container>
        <el-header height="150">
            <div style="width: 1200px;margin: 0 auto;">
                <img src="imgs/logo.png" style="width: 300px;vertical-align: middle" alt="">
                <span>
                    <a href="/">首页</a><el-divider direction="vertical"></el-divider>
                    <a href="">热点资讯</a><el-divider direction="vertical"></el-divider>
                    <a href="">商家入驻</a><el-divider direction="vertical"></el-divider>
                    <a href="">社会招聘</a><el-divider direction="vertical"></el-divider>
                    <a href="">校园招聘</a><el-divider direction="vertical"></el-divider>
                    <a href="">帮助</a>
                </span>
            </div>
            <!--导航菜单开始-->
            <div style="background-color: #82c8ec">
                <el-menu style="width: 1200px;margin: 0 auto"
                        :default-active="selectedCid"
                        class="el-menu-demo"
                        mode="horizontal"
                        @select="handleSelect"
                        background-color="#82c8ec"
                        text-color="#fff"
                        active-text-color="#fff">
                    <el-menu-item v-for="c in categoryArr" :index="c.id">{{c.name}}</el-menu-item>
                    <div style="float: right;margin-top: 10px">
                        <el-input v-model="v.wd" @keydown.native.enter="search()" placeholder="请输入搜索内容">
                            <el-button @click="search" slot="append" icon="el-icon-search"></el-button>
                        </el-input>
                    </div>
                </el-menu>
            </div>
            <!--导航菜单结束-->
        </el-header>
        <el-main style="width: 1200px;margin: 0 auto">
            <!--商品列表开始--><el-row :gutter="20">
            <el-col style="margin-top: 20px" :span="6" v-for="p in productArr">
                <el-card>
                    <a :href="'/detail.html?id='+p.id">
                        <img class="p_img" :src="p.url" width="100%" height="233" alt="">
                    </a>
                    <div>
                        <a :href="'/detail.html?id='+p.id">
                            <p style="font-size: 15px;height: 40px;margin-top: 0">{{p.title}}</p>
                        </a>
                        <div style="color: #666">
                            <span>￥{{p.price}}</span>
                            <s style="font-size: 12px">{{p.oldPrice}}</s>
                            <span style="float: right">销量:{{p.saleCount}}</span>
                        </div>
                    </div>
                </el-card>
            </el-col>
        </el-row>
            <!--商品列表结束-->
        </el-main>
        <el-footer>
            <div style="height: 95px;background-image: url('imgs/wave.png')"></div>
            <div style="height: 100px;background-color: #3f3f3f;padding: 30px 0;
                        text-align: center;color: #b1b1b1">
                <p>Copyright © 北京达内金桥科技有限公司版权所有 京ICP备12003709号-3 京公网安备 11010802029572号</p>
                <p>涵盖20余门课程体系，致力于打造权威的IT职业教育学习平台</p>
                <p>达内在线WWW.TMOOC.CN 专注于IT职业技能培训</p>
            </div>
        </el-footer>
    </el-container>
</div>
</body>
<!-- import Vue before Element -->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
    let v = new Vue({
        el: '#app',
        data: function() {
            return {
                categoryArr:[],
                productArr:[],
                selectedCid:"",
                wd:""
            }
        },
        methods:{
            search(){
                axios.get("/product/selectByWd?wd="+v.wd).then(function (response) {
                    v.productArr = response.data;
                })
            },
            handleSelect(key,keyPath){
                //通过点击的可以(分类id)查询相关的商品
                axios.get("/product/selectByCid?id="+key).then(function (response) {
                    v.productArr = response.data;
                })
            }
        },
        created:function () {
            //请求所有分类
            axios.get("/category/select").then(function (response) {
                v.categoryArr = response.data;
            })

            if (location.search.indexOf("wd") != -1) {//包含wd
                //发出搜索请求
                axios.get("/product/selectByWd"+location.search).then(function (response) {
                    v.productArr = response.data;
                })
            } else {//包含id
                //发请求获取当前分类下的商品
                axios.get("/product/selectByCid"+location.search).then(function (response) {
                    v.productArr = response.data;
                })
                //得到分类的id ?id=5
                let cid = location.search.split("=")[1];
                //此处created方法中属于Vue对象初始化过程中的方法,在初始化完成之前不可以通过V访问Vue对象,由于此时是属于初始化过程中,
                // this代表的就是Vue对象不可以通过V访问Vue对象,
                // v.selectedCid=cid;
                this.selectedCid=cid;
            }
        }
    })
</script>
</html>